Steam-reforming-technology is the most commonly used method of hydrogen generation.
The main process consists of the reaction of steam plus hydrocarbon over a catalyst at around 750°C – 820°C temperature, in order to form hydrogen and carbon oxides. The whole process starts with:

Purification of the feedstocks
where toxins like chloride and sulphur are removed ensuring maximum lifetime of the downstream steam reforming catalyst and other catalysts.

Steam-reforming
is the next step which involves the main hydrogen-producing reaction.

High Temperature Shift, the third step, where the carbon monoxide out of the steam-reforming reaction, reacts with excess steam to form additional hydrogen and carbon dioxide.

Purification process is the final step, which produces the hydrogen product at a purity of 99.999+ vol% and an off-gas/purge gas by means of Pressure Swing Adsorption unit (PSA unit).